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Membranous GN

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https://www.readbyqxmd.com/read/29209544/a-case-of-proliferative-glomerulonephritis-with-monoclonal-igg-deposits-that-showed-predominantly-membranous-features
#1
Homare Shimohata, Kentaro Ohgi, Hiroshi Maruyama, Yasunori Miyamoto, Mamiko Takayashu, Kouichi Hirayama, Masaki Kobayashi
In 2004, the novel category of monoclonal IgG deposition disease has been proposed and termed "proliferative glomerulonephritis with monoclonal IgG deposits" (PGNMID). This disease is characterized by membranoproliferative glomerulonephritis and staining for a single light-chain isotype and gamma heavy-chain subclass. A 76-year-old male who had monoclonal gammopathy was referred to our hospital because of proteinuria. The renal biopsy showed diffuse thickening of the glomerular capillary walls with focal mesangial proliferation...
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/29162595/predicting-outcome-in-patients-with-anti-gbm-glomerulonephritis
#2
Emma E van Daalen, J Charles Jennette, Stephen P McAdoo, Charles D Pusey, Marco A Alba, Caroline J Poulton, Ron Wolterbeek, Tri Q Nguyen, Roel Goldschmeding, Bassam Alchi, Meryl Griffiths, Janak R de Zoysa, Beula Vincent, Jan A Bruijn, Ingeborg M Bajema
BACKGROUND AND OBJECTIVES: Large studies on long-term kidney outcome in patients with anti-glomerular basement membrane (anti-GBM) GN are lacking. This study aimed to identify clinical and histopathologic parameters that predict kidney outcome in these patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: This retrospective analysis included a total of 123 patients with anti-GBM GN between 1986 and 2015 from six centers worldwide. Their kidney biopsy samples were classified according to the histopathologic classification for ANCA-associated GN...
November 21, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29106654/the-population-level-costs-of-immunosuppression-medications-for-the-treatment-of-glomerulonephritis-are-increasing-over-time-due-to-changing-patterns-of-practice
#3
Sean Barbour, Clifford Lo, Gabriela Espino-Hernandez, Sharareh Sajjadi, John Feehally, Scott Klarenbach, Jagbir Gill
Background: Immunosuppression (IS) is the main treatment for most types of glomerulonephritis (GN). Quantifying the cost of IS is necessary to ensure equitable access to therapies and optimal health outcomes, but the real-world cost of IS treatment for GN is largely unknown. We examined temporal changes in the population-level IS medication costs for GN over a 14-year period in a large Canadian province. Methods: We linked a provincial pathology database (containing all GN cases from 2000 to 2012) with renal and medication administrative databases to capture clinical characteristics and IS medications, with follow-up until 2013...
July 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29081027/diagnostic-specificity-of-autoantibodies-to-m-type-phospholipase-a2-receptor-pla2r-in-differentiating-idiopathic-membranous-nephropathy-imn-from-secondary-forms-and-other-glomerular-diseases
#4
A Radice, F Pieruzzi, B Trezzi, G Ghiggeri, P Napodano, M D'Amico, T Stellato, R Brugnano, F Ravera, D Rolla, G Pesce, M E Giovenzana, F Londrino, V Cantaluppi, F Pregnolato, A Volpi, G Rombolà, G Moroni, G Ortisi, Renato A Sinico
Autoantibody against phospholipase A2 receptor (anti-PLA2R) is a sensitive and specific biomarker of idiopathic membranous nephropathy (iMN), being found in approximately 70% of iMN patients and only occasionally in other glomerular diseases. However, whereas its diagnostic specificity vs. normal controls and other glomerulonephritides (GN) has been firmly established, its specificity vs. membranous nephropathy associated with various diseases (sMN) has given inconsistent results. The aim of our study was to evaluate the prevalence of anti-PLA2R antibodies in iMN in comparison with various control groups, including sMN...
October 28, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/29079190/antidiabetic-effect-of-gomisin-n-via-activation-of-amp-activated-protein-kinase
#5
Dae Young Jung, Ji-Hyun Kim, Hoyoung Lee, Myeong Ho Jung
Gomisin N (GN) is a lignan derived from Schisandra chinensis. AMP-activated kinase (AMPK) has gained attention as a therapeutic target for the treatment of metabolic syndrome. Previously, we reported that GN activated the AMPK pathway and ameliorated high-fat diet (HFD)-induced hepatic steatosis. In this study, we investigated the anti-diabetic effects of GN in C2C12 myotubes and HFD obese mice. GN enhanced the phosphorylation of AMPK/acetyl-CoA carboxylase (ACC) and Akt. In addition, GN promoted glucose uptake in C2C12 myotubes, which was accompanied by the translocation of glucose transporter 4 (GLUT4) to the plasma membrane...
October 25, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29070692/the-post-fusion-structure-of-the-heartland-virus-gc-glycoprotein-supports-taxonomic-separation-of-the-bunyaviral-families-phenuiviridae-and-hantaviridae
#6
Yaohua Zhu, Yan Wu, Yan Chai, Jianxun Qi, Ruchao Peng, Wen-Hai Feng, George Fu Gao
Heartland virus (HRTV) is an emerging human pathogen that belongs to the newly defined family Phenuiviridae, order Bunyavirales Gn and Gc are two viral surface glycoproteins encoded by the M segment and are required for early events during infection. HRTV delivers its genome into the cytoplasm by fusion of the viral envelope and endosomal membranes under low pH conditions. Here, we describe the crystal structure of HRTV Gc in its post-fusion conformation. The structure shows that Gc displays a typical class II fusion protein conformation, and the overall structure is identical to severe fever with thrombocytopenia syndrome virus (SFTSV) Gc, which also belongs to the Phenuiviridae family...
October 25, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29054981/immunoadsorption-in-anti-gbm-glomerulonephritis-case-report-in-a-child-and-literature-review
#7
REVIEW
Guillaume Dorval, Mathilde Lion, Sophie Guérin, Saoussen Krid, Louise Galmiche-Rolland, Rémi Salomon, Olivia Boyer
Antiglomerular basement membrane glomerulonephritis (anti-GBM GN) is a rare autoimmune disease that is characterized by rapidly progressive glomerulonephritis that may be associated with pulmonary hemorrhage. Anti-GBM GN is caused by autoantibodies (classically type G immunoglobulin) directed against the α3 subunit of type IV collagen. Without any appropriate treatment, the disease is generally fulminant, and patient and kidney survival is poor. The current guidelines recommend the use of plasma exchanges and immunosuppressive drugs...
November 2017: Pediatrics
https://www.readbyqxmd.com/read/29042902/unusual-case-of-posterior-reversible-encephalopathy-syndrome-in-a-patient-with-anti-glomerular-basement-membrane-antibody-glomerulonephritis-a-case-report-and-review-of-the-literature
#8
Boram Cha, Dae Young Kim, Hyunil Jang, Seun Deuk Hwang, Huck Jei Choi, Moon-Jae Kim
Posterior reversible encephalopathy syndrome (PRES) is characterized by a clinical and radiological entity with the sudden onset of seizures, headache, altered consciousness, and visual disturbances in patients with the findings of reversible vasogenic subcortical edema without infarction. Hypertension, renal disease, and autoimmune disease are co-morbid conditions of PRES. Nevertheless, there have only been a few case reports of PRES in a patient with anti-glomerular basement membrane antibody glomerulonephritis (anti-GBM GN)...
September 2017: Electrolyte & Blood Pressure: E & BP
https://www.readbyqxmd.com/read/28990057/id3-may-protect-mice-from-anti%C3%A2-gbm-glomerulonephritis-by-regulating-the-differentiation-of-th17-and-treg-cells
#9
Huan Zhou, Le Wang, Qing Xu, Qingquan Liu, Hui Liu, Wenhui Qiu, Tingyang Hu, Yongman Lv, Qian Zhang
Anti‑glomerular basement membrane glomerulonephritis (anti‑GBM GN) is an autoimmune disease that leads to severe and rapidly progressive renal injury. Inhibition of DNA‑binding factor 3 (ID3) serves a key role in autoimmune diseases, such as asthma and Sjögren's syndrome, and in experimental allergic encephalitis models. However, the role of ID3 in the progression of anti‑GBM GN remains unknown. In the present study, ID3 mRNA expression increased between 3‑ and 20‑fold in the renal tissues of anti‑GBM GN mice compared with the Control group, with a peak at day 14 post‑induction...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28975106/reporting-renal-biopsies-from-cyprus-a-systematic-approach
#10
Düriye Deren Oygar, Guy H Neild
BACKGROUND: The etiology of renal disease varies in different parts of the world. In the Middle East, half of all patients reaching end-stage are categorised as either unknown etiology or hypertension-related nephropathy. OBJECTIVES: To report a renal biopsy series, in a reproducible format and manner, so that data can be compared directly among other series. PATIENTS AND METHODS: Biopsies of native kidneys were performed in a 10-year period, at a tertiary referral hospital that provides the entire nephrology service for north Cyprus...
July 2017: Journal of Nephropathology
https://www.readbyqxmd.com/read/28941123/renal-involvement-in-primary-sj%C3%A3-gren-s-syndrome-a-retrospective-study-of-103-biopsy-proven-cases-from-a-single-center-in-china
#11
Hua-Xia Yang, Jing Wang, Yu-Bing Wen, Yun-Yun Fei, Meng-Di Jiang, Meng-Yu Zhou, Wen Zhang, Hang Li, Xue-Mei Li, Feng-Chun Zhang, Xue-Wang Li, Xuan Zhang, Li-Meng Chen
AIM: To retrospectively investigate the features of renal involvements in patients with primary Sjögren's syndrome (pSS) with biopsy results. METHODS: A total of 2096 pSS inpatients at Peking Union Medical College Hospital in China from 2005 to 2015 were identified. Patients with biopsy-proven renal involvement (SS-renal) and matched controls (SS-only) were recruited. The clinical and pathologic features as well as treatments and outcomes were systematically analyzed...
September 21, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28911262/alleviation-by-gamma-amino-butyric-acid-supplementation-of-chronic-heat-stress-induced-degenerative-changes-in-jejunum-in-commercial-broiler-chickens
#12
Rasha A Al Wakeel, Mustafa Shukry, Ahmed Abdel Azeez, Shawky Mahmoud, Michel Fahmy Saad
High ambient temperature adversely influences poultry production. In the present study, gamma amino butyric acid (GABA) supplementation was used to alleviate the adverse changes due to heat stress (HS) in a broiler chicken strain (Ross 308). At 21 days of age, the birds were divided into four groups of 13. Two groups were housed under normal room temperature, one group was given orally 0.2 ml 0.9% physiological saline (CN) daily, the other group received 0.2 ml of 0.5% GABA solution orally (GN). A third group was exposed to environmental HS (33 ± 1 °C lasting for 2 weeks) + physiological saline (CH) and a fourth group was exposed to HS + GABA supplementation (GH)...
September 15, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28835498/structural-transitions-of-the-conserved-and-metastable-hantaviral-glycoprotein-envelope
#13
Ilona Rissanen, Robert Stass, Antra Zeltina, Sai Li, Jussi Hepojoki, Karl Harlos, Robert J C Gilbert, Juha T Huiskonen, Thomas A Bowden
Hantaviruses are zoonotic pathogens that cause severe hemorrhagic fever and pulmonary syndrome. The outer membrane of the hantavirus envelope displays a lattice of two glycoproteins, Gn and Gc, which orchestrate host cell recognition and entry. Here, we describe the crystal structure of the Gn glycoprotein ectodomain from the Asiatic Hantaan virus (HTNV), the most prevalent pathogenic hantavirus. Structural overlay analysis reveals that the HTNV Gn fold is highly similar to the Gn of Puumala virus (PUUV), a genetically and geographically distinct and less pathogenic hantavirus found predominantly in northeastern Europe, confirming that the hantaviral Gn fold is architecturally conserved across hantavirus clades...
November 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28794043/sorafenib-impedes-rift-valley-fever-virus-egress-by-inhibiting-valosin-containing-protein-function-in-the-cellular-secretory-pathway
#14
Ashwini Brahms, Rajini Mudhasani, Chelsea Pinkham, Krishna Kota, Farooq Nasar, Rouzbeh Zamani, Sina Bavari, Kylene Kehn-Hall
There is an urgent need for therapeutic development to combat infections caused by Rift Valley fever virus (RVFV), which causes devastating disease in both humans and animals. In an effort to repurpose drugs for RVFV treatment, our previous studies screened a library of FDA-approved drugs. The most promising candidate identified was the hepatocellular and renal cell carcinoma drug sorafenib. Mechanism-of-action studies indicated that sorafenib targeted a late stage in virus infection and caused a buildup of virions within cells...
November 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28790819/kalopanacis-cortex-extract-capped-gold-nanoparticles-activate-nrf2-signaling-and-ameliorate-damage-in-human-neuronal-sh-sy5y-cells-exposed-to-oxygen-glucose-deprivation-and-reoxygenation
#15
Sun Young Park, Seon Yeong Chae, Jin Oh Park, Kyu Jin Lee, Geuntae Park
Recently, environment-friendly synthesis of gold nanoparticles (GNPs) has been extensively explored by biologists and chemists. However, significant research is still required to determine whether "eco-friendly" GNPs are beneficial to human health and to elucidate the molecular mechanisms of their effects on human cells. We used human neuronal SH-SY5Y cells to show that treatment with Kalopanacis Cortex extract-capped GNPs (KC-GNs), prepared via an eco-friendly, fast, one-pot synthetic route, protected neuronal cells against oxygen-glucose deprivation/reoxygenation (OGD/R)-induced damage...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28763127/european-veterinary-renal-pathology-service-a-survey-over-a-7-year-period-2008-2015
#16
L Aresu, V Martini, S L Benali, C Brovida, R E Cianciolo, R Dalla Riva, D Trez, J J Van Der Lugt, A Van Dongen, E Zini
BACKGROUND: The European Veterinary Renal Pathology Service (EVRPS) is the first Web-based registry for canine renal biopsy specimens in Europe. HYPOTHESIS/OBJECTIVES: The aim was to verify whether differences exist between the clinical and laboratory presentation of dogs with nephropathy according to renal pathological findings, as defined by light and electron microscopy of renal biopsy specimens submitted to EVRPS. ANIMALS: Renal biopsy specimens of dogs were collected from the archive of the service (n = 254)...
September 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28722531/patterns-of-renal-disease-in-south-korea-a-20-year-review-of-a-single-center-renal-biopsy-database
#17
Ho Sik Shin, Dae Hyeon Cho, Soo Kyoung Kang, Hyun Jeong Kim, Soo Young Kim, Joung Wook Yang, Gyong Hoon Kang, Ye Na Kim, Yeonsoon Jung, Bong-Kwon Cheon, Hark Rim
BACKGROUND: Several registries and centers have reported the results of renal biopsies from different parts of the world. As there are few data regarding the epidemiology of glomerulonephritis (GN) in South Korea, we conducted this study on renal biopsy findings during the last 20 years from a single center. METHODS: Data for 818 patients who underwent renal biopsy at our center between 1992 and 2011 were collected retrospectively. All kidney specimens were examined with light microscopy (LM) and immunofluorescent microscopy (IF)...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28715198/structural-variations-in-hybrid-all-nanoparticle-gibbsite-nanoplatelet-cellulose-nanocrystal-multilayered-films
#18
Clélia Martin, Robert Barker, Erik B Watkins, Frédéric Dubreuil, Emily D Cranston, Laurent Heux, Bruno Jean
Cellulose nanocrystals (CNCs) are promising biosourced building blocks for the production of high performance materials. In the last ten years, CNCs have been used in conjunction with polymers for the design of multilayered thin films via the layer-by-layer assembly technique. Herein, polymer chains have been replaced with positively charged inorganic gibbsite nanoplatelets (GN) to form hybrid "nanoparticle-only" composite films. A combination of atomic force microscopy and neutron reflectivity experiments was exploited to investigate the growth and structure of the films...
August 2, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28639628/multiple-socioeconomic-deprivation-and-impact-on-survival-in-patients-with-primary-glomerulonephritis
#19
Emily P McQuarrie, Bruce Mackinnon, Samira Bell, Stewart Fleming, Valerie McNeice, Graham Stewart, Jonathan G Fox, Colin C Geddes
Background: The impact of multiple socio-economic deprivation on patient outcomes in primary renal diseases is unknown. We aimed to assess whether risk of death or requiring renal replacement therapy (RRT) in patients with primary glomerulonephritis (GN) was higher in patients living in an area of multiple socio-economic deprivation. Methods: Patients undergoing native renal biopsy between 2000 and 2014 were identified. Baseline demographics, postcode at time of biopsy, follow-up blood pressure, proteinuria and time to death or RRT were recorded...
February 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28578053/bactericidal-effect-of-266-to-279nm-wavelength-uvc-leds-for-inactivation-of-gram-positive-and-gram-negative-foodborne-pathogenic-bacteria-and-yeasts
#20
Do-Kyun Kim, Soo-Ji Kim, Dong-Hyun Kang
Recently, UVC-LED technology has been validated as an alternative to irradiation with conventional mercury UV lamps. In this study, we sought to determine primary factors affecting reduction trends shown in several microorganisms. Four major foodborne pathogens (Escherichia coli O157:H7, Salmonella spp. Listeria monocytogenes, Staphylococcus aureus) and spoilage yeasts (Saccharomyces pastorianus, Pichia membranaefaciens), important to the brewing industry, were inoculated onto selective and non-selective media in order to investigate reduction tendencies at 4 different peak wavelengths (266 to 279nm)...
July 2017: Food Research International
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